AIA/NAS 6603-6620-2009 pdf download BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE, ALLOY STEEL, LONG THREAD, REDUCED MAJOR DIA., SELF-LOCKING AND NONLOCKING, 1 60 KSI Ftu
HEAT TREAT: DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS, WITH CONTROLS PER AMS-H-6875 OR AMS2759:
1 60 – 1 80 KSI Ftu
FINISH: CADMIUM PLATED BOLTS – CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE II, CLASS 2. EMBRITTLEMENT REQUIREMENT PER NAS4002.
CHROMIUM PLATED BOLTS – CHROMIUM PLATE PER AMS-QQ-C-320, CLASS 2 ON SHANK ONLY. ALL OTHER SURFACES CADMIUM PLATED. NO CHROMIUM WITHIN .020 OF LINE OF TANGENCY OF HEAD TO SHANK FILLET. CHROMIUM IN THREAD RUNOUT PERMITTED. CHROMIUM PLATED BOLTS NOT AVAILABLE WITH GRIP DASH NUMBER 1 OR NUMBER 2.
CODE: NO FINISH CODE AFTER BASIC NUMBER FOR CADMIUM PLATED BOLTS.
ADD “C” AFTER BASIC NUMBER FOR CHROMIUM PLATED BOLTS.
ADD “D” AFTER BASIC NUMBER FOR DRILLED SHANK BOLTS. DO NOT USE WITH “L” OR “P” CODE. /1 3/
ADD “H” AFTER BASIC NUMBER FOR BOLT WITH DRILLED HEAD.
ADD “L” AFTER BASIC NUMBER FOR SELF-LOCKING BOLT WITH LOCKING ELEMENT TYPE OPTIONAL;
SEE PROCUREMENT SPEC BELOW. DO NOT USE “L” WITH “D” OR “P” CODE.
ADD “P” AFTER BASIC NUMBER FOR SELF-LOCKING BOLT WITH PATCH TYPE LOCKING ELEMENT ONLY;
SEE PROCUREMENT SPEC BELOW. DO NOT USE “P” WITH “D” OR “L” CODE.
GRIP DASH NUMBER INDICATES GRIP IN .0625 INCREMENTS (CONVERTED TO THREE DECIMAL PLACES PER ANSI Y1 4.5-1 982). SEE TABLE II FOR TABULATIONS OF GRIP AND LENGTH DIMENSIONS.
/1 7/
CODE LETTER “X” AND “Y” FOLLOWING THE GRIP DASH NUMBER INDICATES REPLACEMENT OVERSIZE REPAIR BOLT. (SEE LAST SHEET)
IF MORE THAN ONE CODE LETTER IS USED IN SEQUENCE, ARRANGE THE LETTERS ALPHABETICALLY.
EXAMPLE OF PART NUMBER: (SEE LAST SHEET FOR OVERSIZE BOLTS.)
NAS6604-1 0 = BOLT, .2500-28 THREAD, .625 GRIP, UNDRILLED, NONLOCKING, CADMIUM PLATED.
NAS6604D1 0 = BOLT, .2500-28 THREAD, .625 GRIP, DRILLED SHANK, UNDRILLED HEAD,NONLOCKING, CADMIUM PLATED.
NAS6604H1 0 = BOLT, .2500-28 THREAD, .625 GRIP, DRILLED HEAD, UNDRILLED SHANK,NONLOCKING, CADMIUM PLATED.
NAS6604DH1 0 = BOLT, .2500-28 THREAD, .625 GRIP, DRILLED SHANK, DRILLED HEAD,NONLOCKING, CADMIUM PLATED.
NAS6604L1 0 = BOLT, .2500-28 THREAD, .625 GRIP, UNDRILLED, SELF-LOCKING (LOCKING TYPE OPTIONAL; SEE PROCUREMENT SPEC BELOW), CADMIUM PLATED.
NAS6604P1 0 = BOLT, .2500-28 THREAD, .625 GRIP, UNDRILLED, SELF-LOCKING (PATCH TYPE;
SEE PROCUREMENT SPEC BELOW), CADMIUM PLATED.
NAS6604C1 0 = BOLT, .2500-28 THREAD, .625 GRIP, UNDRILLED, NONLOCKING, CHROMIUM PLATED.
NOTES:
/1 / GRIP LENGTH: FROM UNDER SIDE OF HEAD TO END OF FULL CYLINDRICAL PORTION OF SHANK.
/2/ BEARING SURFACE SQUARENESS: WITHIN .003 FIM OF “ØD”.
/3/ “ØC” MAX NOT TO EXCEED ACTUAL WIDTH ACROSS FLATS; MIN AS TABULATED IN TABLE I.
/4/ “ØP” HOLE CENTERLINE WITHIN .01 0 AND NORMAL WITHIN 2º OF BOLT CENTERLINE.
/5/ REFERENCE DIMENSIONS ARE FOR DESIGN PURPOSES ONLY AND ARE NOT AN INSPECTION REQUIREMENT.
/6/ CONCENTRICITY: “ØC” AND “ØD” WITHIN “X” VALUES FIM. “ØD” AND MAJOR THREAD DIA WITHIN Y VALUES FIM.
/7/ SHANK STRAIGHTNESS: WITHIN “Z” VALUES FIM PER INCH OF LENGTH.
/8/ TOP OF HEAD SHALL BE FLAT ON THE 1 .1 250-1 2 AND 1 .2500-1 2 SIZE BOLTS.

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